//
// Created by zy on 2020/10/15.
//
#include <iostream>

using namespace std;
typedef unsigned char height_t;

#define PI 3.14;

int dataTypeLearn() {
    bool a = false;
    char b = 'b';
    int c = 13;
    float d = 3.14;
    double e = 3.14159265358979;


    height_t f = 49;


    enum color {red,green = 5,blue} g;
    g = blue;

    double h = 31415926E-5L;

    cout << f << endl;
    cout << g <<endl;
    return 0;
}
